package com.tree;

public class Test001 {
    int i;
    public static void main(String args[]){
        Test001 t=new Test001();
        t.test();
    }
    public  void test(){


        i++;

      //  System.out.print(i+" ");
         if(i==10){
             return;
         }
        System.out.print("想");
        System.out.print(i+" ");
         test();
         i--;
        System.out.print(i+" ");
    }
}
